Large Blue, is highly dependent on specific grassland ecosystems, particularly those shaped by low-intensity farming, where Wild Thyme (Thymus polytrichus) or Oregano (Origanum vulgare) and host ant species Myrmica sabuleti are found in abundance.
The butterfly's life cycle is uniquely adapted to these conditions, relying on a delicate balance between plant availability and its symbiotic relationship with the host ants.